You know your page and your users best, so we recommend putting the button wherever you think it will be the most effective. Above the fold, near the title of the page, and close to sharing links is often a good location. It can also be effective to place the +1 button at both the end and the beginning of an article or story.
+1 is a public action, so you should add the button only to public, crawlable pages on your site. Once you add the button, Google may crawl or re crawl the page, and store the page title and other content, in response to a +1 button impression or click.
Adding +1 button below the Post title and Inside Post Left or Right Top corner Log in to blogger
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DesignClick
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Expand Widget Templates
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Immediately after that paste code given below
Adding +1 button below the Post title with author Meta
Log in to blogger
Click
DesignClick
Edit HTML tab
Expand Widget Templates
Find
or
Immediately after that ,paste code given below
Optional Tweaks
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small to medium or tall for different look